Place the egg whites, Greek yogurt, protein powder, oats, half of the banana, baking powder, sea salt, and vanilla extract into a high-speed blender.
Blend on high until the batter is completely smooth and uniform.
Let the batter rest for 2 to 3 minutes; this allows the oats to hydrate so the pancakes turn out thick and fluffy.
Heat a large non-stick skillet over medium-low heat and lightly grease with a tiny drop of ghee if necessary.
Pour the batter to form three or four pancakes and cook until small bubbles form on the surface and the edges look set.
Carefully flip the pancakes and cook for another 1-2 minutes until golden brown and cooked through.
While the pancakes finish, slice the remaining half of the banana into rounds and melt the 1 tsp of ghee in a small separate skillet over medium heat.
Add the banana slices and cinnamon to the small skillet, sautéing for 1 minute per side until they are soft, browned, and caramelized.
Stack the pancakes on a plate and top immediately with the warm caramelized bananas.